riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Jefferson County Disaster Risk

Jefferson County, Florida

FEMA Risk Rating

Very Low

National Percentile

39th

of 3,144 counties

State Rank

#60

of 67 (1 = highest risk)

Flood Risk

39th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 39% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 71% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 57% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 31% of US counties

Hurricane

Tropical cyclone and hurricane risk

Moderate

Higher than 87% of US counties

Risk Overview

About Natural Disaster Risk in Jefferson County, Florida

Jefferson ranks well below national norms

Jefferson County's composite risk score of 38.99 places it in the Very Low category, significantly below the typical U.S. county profile. This score reflects a rural Big Bend community with substantially lower natural hazard exposure than most American counties.

Florida's lowest-risk county overall

At 38.99, Jefferson County represents the lowest composite risk score among all Florida counties, falling far below the state average of 75.74. The county's inland, rural location shields it from the severe hurricane and storm surge threats affecting Florida's coasts.

Safest in Big Bend region by far

Jefferson County's 38.99 is substantially lower than all surrounding counties, making it the region's safest community for natural hazard exposure. Even nearby Taylor and Madison counties face higher risk profiles, highlighting Jefferson's exceptional protection.

Wildfire and hurricane only meaningful threats

Wildfire risk (71.34) represents Jefferson County's highest hazard exposure, though still moderate compared to most Florida communities, followed by hurricane risk (86.73). Flood (39.40), tornado (57.25), and earthquake (30.76) risks all remain substantially below state and national norms.

Standard coverage sufficient for low risk

Jefferson County's exceptionally low composite risk score (38.99) means standard homeowner's insurance with basic wind coverage is likely sufficient for most residents. Consider adding flood insurance only if your property sits in a flood-prone area, as county-wide flood risk (39.40) remains well below typical levels.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Jefferson County

Top Hazards by Exposure

  1. #1
    HurricanePrepare
    87th percentile
  2. #2
    WildfirePrepare
    71th percentile
  3. #3
    TornadoPrepare
    57th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Jefferson County

Risk Verdict

Compared to the nation's 3,144 counties, Jefferson County ranks at the 39th percentile for natural disaster risk — toward the safer end of the spectrum. A 39th percentile score positions Jefferson County among the nation's lower-risk counties, a genuinely favorable outcome — one that simple, low-cost preparedness habits can reinforce further.

Hazard Breakdown

Hurricane risk is Jefferson County's dominant natural hazard, ranked at the 87th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 71th percentile nationally. Additional tracked hazards include tornado (57th percentile), flood (39th percentile), earthquake (31th percentile).

Preparedness Context

With hurricane ranked at the 87th percentile nationally, Jefferson County sits in a zone where multi-day supply readiness matters: grid outages after landfalling storms can last one to three weeks in heavily affected areas. Wildfire at the 71th percentile nationally is Jefferson County's secondary hazard, often intensified by the same weather systems that produce hurricane conditions. Insurance gaps are the most common post-hurricane financial shock: standard homeowners policies typically exclude flood damage and may have a separate wind deductible. Jefferson County households benefit from a pre-season insurance review confirming both wind and flood coverage.

Regional Context

At 36.7 points below the Florida state average, Jefferson County is among the lower-risk counties in the state for natural disaster exposure.

Is your household prepared for Jefferson County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Jefferson County, FL?
Jefferson County has a FEMA National Risk Index rating of Very Low, placing it in the 39th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Jefferson County?
Jefferson County is evaluated for five major natural hazard types: hurricane (87th percentile), wildfire (71th percentile), tornado (57th percentile), flooding (39th percentile), earthquake (31th percentile). The highest-risk hazard is hurricane at the 87th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Jefferson County risk compare to the Florida average?
Jefferson County's composite risk percentile is 39th, compared to the Florida state average of 76th percentile. The state's overall risk rating is Relatively Low. This means Jefferson County faces lower natural disaster risk than the typical county in Florida.
Is Jefferson County at risk for hurricane?
Yes, Jefferson County's hurricane risk is at the 87th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Jefferson County is at the 39th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Is Jefferson County a safe place to live?
Jefferson County's composite risk score of 39th percentile is below the Florida state average of 76th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is hurricane at the 87th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Source

Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.

Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.